How can I make my water not look like ink?
Maybe im just too late right here, but anyways.

You need to mix a glass shader (put 1.35 IOR) with a transparent BSDF and you're done, or if you wanna go beyond and have a photorealistic water looking, you can do it by combining the Principled BSDF and transparent BSDF.

Change these settings on the Principled Shader:

Roughness to 0 or 0.05 (depending on the type of water, if dirty, clean, etc)
IOR to 1.35
Transparent to 1 or 0.9 if dirty and such (you can also play with the colour and the transparent bar to add some color to the water)